They were run by the SS.
All the concentration camps and extermination camps were run by the SS.
In 1933-34 the SA ran the concentration camps.
The concentration camps wass ran by the Leader of the SS Heinrich Himmler
the people running the camps ran away or surrendered
The SS ran the concentration camps and extermination camps and organized the holocaust.
Like all Nazi concentration camps, it was run by the SS.
The SS stood for Schutzstaffel and were the Gestapo and ran the concentration camps.
Like all the camps in Poland, it was run by Germany.
From 1934 onwards all Nazi concentration camps were run by the SS.
At first (until July 1934) the Nazi concentration camps were run by the SA (Stormtroopers, 'Brownshirts'), but from mid 1934 they were run by the SS. Later the SS was also in charge of the 'Final Solution' and ran the extermination camps in Poland. The concentration camps were run by the SS-Totenkopfverbände (SS Death's Head units).
There were concentration camps in the Holocaust. The concentration camps were basically work/death camps.
No, several concentration camps were run by Canadian and American troops in North America during the war (though they weren't called concentration camps; they were called internment camps). They were established mostly to keep Japanese Americans and Canadians under the watchful eye of the military during the war.